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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004-2005 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "wsamovie.h"
#include "codecs.h"
#include "common/stream.h"
#ifdef DUMP_FILES
#include <stdio.h>
#endif
namespace Kyra {
WSAMovieV1::WSAMovieV1(uint8* data, uint32 size, uint8 gameid) {
if (!data) {
error("resource created without data");
}
_background = 0;
_currentFrame = 0;
_ownPalette = 0;
_offsetTable = 0;
_prefetchedFrame = 0xFFFE;
_buffer = data;
// I like these Streams .... =)
Common::MemoryReadStream datastream(data, size);
datastream.read(&_wsaHeader, sizeof(_wsaHeader));
#ifdef DUMP_FILES
// TODO: make Linux/BSD conform
FILE* wsaheader = fopen("dumps/wsaheader.txt", "w+");
if (wsaheader) {
for (uint32 pos = 0; pos < sizeof(_wsaHeader); ++pos)
fprintf(wsaheader, "%d pos. byte: %d\n", pos + 1, ((uint8*)&_wsaHeader)[pos]);
fprintf(wsaheader, "\n");
for (uint32 pos = 0; pos < sizeof(_wsaHeader) / 2; ++pos)
fprintf(wsaheader, "%d pos. word: %d\n", pos + 1, ((uint16*)&_wsaHeader)[pos]);
fprintf(wsaheader, "\n");
for (uint32 pos = 0; pos < sizeof(_wsaHeader) / 4; ++pos)
fprintf(wsaheader, "%d pos. dword: %d\n", pos + 1, ((uint32*)&_wsaHeader)[pos]);
}
fclose(wsaheader);
#endif
if (gameid == KYRA1CD) {
uint16 tmp = _wsaHeader._delta;
_wsaHeader._delta = _wsaHeader._type;
_wsaHeader._type = tmp;
// skip 2 bytes
datastream.readUint16LE();
}
debug("_wsaHeader._numFrames = %d", _wsaHeader._numFrames);
debug("_wsaHeader._width = %d", _wsaHeader._width);
debug("_wsaHeader._height = %d", _wsaHeader._height);
debug("_wsaHeader._xPos = %d", _wsaHeader._xPos);
debug("_wsaHeader._yPos = %d", _wsaHeader._yPos);
debug("_wsaHeader._delta = %d", _wsaHeader._delta);
debug("_wsaHeader._type = %d", _wsaHeader._type);
// check for version
if (_wsaHeader._type) {
error("loading a WSA version 2 with the WSA version 1 loader");
}
uint16 offsetAdd = 0;
// checks now for own palette
if (_wsaHeader._type % 2) {
// don't now if this will work right, because a few lines before we use
// _wsaHeader._type for detect the version of the WSA movie,
// but this code was from FreeKyra Tools so I think it will work
// if this is a packed palette we have a problem :)
offsetAdd = 768 /* 0x300 */;
}
// last frame seems every time to be a empty one
_frameCount = _wsaHeader._numFrames - 1;
_offsetTable = new uint32[_wsaHeader._numFrames + 2];
assert(_offsetTable);
// loads the offset table
for (uint32 tmp = 0; tmp < (uint32)_wsaHeader._numFrames + 2; ++tmp) {
_offsetTable[tmp] = datastream.readUint32LE() + offsetAdd;
}
if (offsetAdd) {
uint8* palbuffer = new uint8[offsetAdd];
assert(palbuffer);
datastream.read(palbuffer, offsetAdd);
_ownPalette = new Palette(palbuffer, offsetAdd);
assert(_ownPalette);
}
// FIXME: Confirm the default value here?
// LordHoto: What is the 'default' value? 0?
_transparency = -1;
}
WSAMovieV1::~WSAMovieV1() {
delete [] _buffer;
delete [] _offsetTable;
delete [] _currentFrame;
delete _ownPalette;
}
const uint8* WSAMovieV1::loadFrame(uint16 frame, uint16* width, uint16* height) {
if (width) *width = _wsaHeader._width;
if (height) *height = _wsaHeader._height;
if (frame == _prefetchedFrame) {
return _currentFrame;
} else {
if (!_currentFrame) {
_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
assert(_currentFrame);
memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
}
if (frame >= _wsaHeader._numFrames)
return 0;
uint8* frameData = 0;
static uint8 image40[64000]; // I think this will crash on Plam OS :)
memset(image40, 0, ARRAYSIZE(image40));
if (frame == _prefetchedFrame + 1) {
frameData = _buffer + _offsetTable[frame];
Compression::decode80(frameData, image40);
Compression::decode40(image40, _currentFrame);
} else {
if (_background) {
setImageBackground(_background, _backWidth, _backHeight);
} else {
memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
}
for (uint32 i = 0; i <= frame; ++i)
{
frameData = _buffer + _offsetTable[i];
Compression::decode80(frameData, image40);
Compression::decode40(image40, _currentFrame);
}
}
_prefetchedFrame = frame;
return _currentFrame;
}
return 0;
}
void WSAMovieV1::renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame) {
if (!loadFrame(frame, 0, 0))
return;
uint8* src = _currentFrame;
uint8* dst = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
uint32 copysize = planepitch - _wsaHeader._xPos;
if (copysize > _wsaHeader._width)
copysize = _wsaHeader._width;
if (_transparency == -1) {
for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < planeheight; ++y_) {
memcpy(dst, src, copysize * sizeof(uint8));
dst += planepitch;
src += _wsaHeader._width;
}
} else {
for (uint16 yadd = 0; yadd < _wsaHeader._height; ++yadd) {
for (uint16 xadd = 0; xadd < copysize; ++xadd) {
if (*src == _transparency) {
++dst;
++src;
} else {
*dst++ = *src++;
}
}
src += _wsaHeader._width - copysize;
dst += planepitch - copysize;
}
}
}
void WSAMovieV1::setImageBackground(uint8* plane, uint16 planepitch, uint16 height) {
assert(plane);
_background = plane;
_backWidth = planepitch; _backHeight = height;
if (!_currentFrame) {
_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
assert(_currentFrame);
}
memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
uint8* src = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
uint8* dst = _currentFrame;
uint32 copysize = planepitch - _wsaHeader._xPos;
if (copysize > _wsaHeader._width)
copysize = _wsaHeader._width;
// now copy the rect of the plane
for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
memcpy(dst, src, copysize * sizeof(uint8));
dst += _wsaHeader._width;
src += planepitch;
}
for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
for (uint16 x = 0; x < _wsaHeader._width; ++x) {
_currentFrame[y_ * _wsaHeader._width + x] ^= 0;
}
}
_prefetchedFrame = 0xFFFE;
}
// Kyrandia 2+ Movies
WSAMovieV2::WSAMovieV2(uint8* data, uint32 size) {
if (!data) {
error("resource created without data");
}
_background = 0;
_currentFrame = 0;
_ownPalette = 0;
_offsetTable = 0;
_prefetchedFrame = 0xFFFE;
_looping = false;
_buffer = data;
// I like these Streams .... =)
Common::MemoryReadStream datastream(data, size);
datastream.read(&_wsaHeader, sizeof(_wsaHeader));
// check for version
if (!_wsaHeader._type) {
error("loading a WSA version 1 with the WSA version 2 loader");
}
uint16 offsetAdd = 0;
// checks now for own palette
if (_wsaHeader._type % 2) {
// don't now if this will work right, because a few lines before we use
// _wsaHeader._type for detect the version of the WSA movie,
// but this code was from FreeKyra Tools so I think it will work
// if this is a packed palette we have a problem :)
offsetAdd = 768 /* 0x300 */;
}
_offsetTable = new uint32[_wsaHeader._numFrames + 2];
assert(_offsetTable);
// loads the offset table
for (uint32 tmp = 0; tmp < (uint32)_wsaHeader._numFrames + 2; ++tmp) {
_offsetTable[tmp] = datastream.readUint32LE() + offsetAdd;
}
if (offsetAdd) {
uint8* palbuffer = new uint8[offsetAdd];
assert(palbuffer);
datastream.read(palbuffer, offsetAdd);
_ownPalette = new Palette(palbuffer, offsetAdd);
assert(_ownPalette);
}
if (_offsetTable[_wsaHeader._numFrames + 1] - offsetAdd) {
++_wsaHeader._numFrames;
_looping = true;
}
_frameCount = _wsaHeader._numFrames;
}
WSAMovieV2::~WSAMovieV2() {
delete [] _buffer;
delete [] _offsetTable;
delete [] _currentFrame;
delete _ownPalette;
}
const uint8* WSAMovieV2::loadFrame(uint16 frame, uint16* width, uint16* height) {
if (width) *width = _wsaHeader._width;
if (height) *height = _wsaHeader._height;
if (frame == _prefetchedFrame) {
return _currentFrame;
} else {
if (!_currentFrame) {
_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
assert(_currentFrame);
memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
}
if (frame >= _wsaHeader._numFrames)
return 0;
uint8* frameData = 0;
static uint8 image40[64000]; // I think this will crash on Plam OS :)
memset(image40, 0, ARRAYSIZE(image40));
if (frame == _prefetchedFrame + 1) {
frameData = _buffer + _offsetTable[frame];
Compression::decode80(frameData, image40);
Compression::decode40(image40, _currentFrame);
} else {
if (_background) {
setImageBackground(_background, _backWidth, _backHeight);
} else {
memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
}
for (uint32 i = 0; i <= frame; ++i)
{
frameData = _buffer + _offsetTable[i];
Compression::decode80(frameData, image40);
Compression::decode40(image40, _currentFrame);
}
}
_prefetchedFrame = frame;
return _currentFrame;
}
return 0;
}
void WSAMovieV2::renderFrame(uint8* plane, uint16 planepitch, uint16 planeheight, uint16 frame) {
if (!loadFrame(frame, 0, 0))
return;
uint8* src = _currentFrame;
uint8* dst = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
uint32 copysize = planepitch - _wsaHeader._xPos;
if (copysize > _wsaHeader._width)
copysize = _wsaHeader._width;
if (_transparency == -1) {
for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < planeheight; ++y_) {
memcpy(dst, src, copysize * sizeof(uint8));
dst += planepitch;
src += _wsaHeader._width;
}
} else {
for (uint16 yadd = 0; yadd < _wsaHeader._height; ++yadd) {
for (uint16 xadd = 0; xadd < copysize; ++xadd) {
if (*src == _transparency) {
++dst;
++src;
} else {
*dst++ = *src++;
}
}
src += _wsaHeader._width - copysize;
dst += planepitch - copysize;
}
}
}
void WSAMovieV2::setImageBackground(uint8* plane, uint16 planepitch, uint16 height) {
assert(plane);
_background = plane;
_backWidth = planepitch; _backHeight = height;
if (!_currentFrame) {
_currentFrame = new uint8[_wsaHeader._width * _wsaHeader._height];
assert(_currentFrame);
}
memset(_currentFrame, 0, sizeof(uint8) * _wsaHeader._width * _wsaHeader._height);
uint8* src = &plane[_wsaHeader._yPos * planepitch + _wsaHeader._xPos];
uint8* dst = _currentFrame;
uint32 copysize = planepitch - _wsaHeader._xPos;
if (copysize > _wsaHeader._width)
copysize = _wsaHeader._width;
// now copy the rect of the plane
for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
memcpy(dst, src, copysize * sizeof(uint8));
dst += _wsaHeader._width;
src += planepitch;
}
for (uint16 y_ = 0; y_ < _wsaHeader._height && _wsaHeader._yPos + y_ < height; ++y_) {
for (uint16 x = 0; x < _wsaHeader._width; ++x) {
_currentFrame[y_ * _wsaHeader._width + x] ^= 0;
}
}
_prefetchedFrame = 0xFFFE;
}
} // end of namespace Kyra
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